Gas-generator oil heater



Fe'b. 18, 1930. H. BAETZ GAS GENERATOR OIL HEATER Filed Aug. 21, 1926 bw N3 IIIIII..

QZZZZ/ZZZZZZZZZ,

f f f f f f f Patented Feb. 18, 193() UNITED STATES PATENT OFFICE HENRY BAETZ, MONTCLAIR, NEW JERSEY, ASSIGNOR F ONE-HALF T0 CAR-STEN I. JoHNsEN, 0F BROOKLYN, NEW YORK GAS-GENERATOR OIL HEATER Application filed August 21, 1926. Serial No. 130,565.

This invention relates to gas generators which are particularly designed and adapted for utilizing hydrocarbon fuels for heating purposes. More specifically the invention relates to gas generating oil heaters, and has for its object the production of an eiicient and simple construction for generating hot fuel gases which are ready to react, or ignite, when brought in contact with atmospheric air or with a supply of oxygen.

Another object of my invention includes a construction which provides for the atomization of hydrocarbon fuel. I further provide for the recirculation of a portion of the generated gas to thereby serve as a carrier of thermal units for the purpose of vaporizing the atomized fuel within a conned space or system. I also provide means for regulating the combustion flame or jet so that said flame 0r jet automatically builds itself up and increases, or decreases, in volume and intensity in accordance with the desired or required needs.

A further object includes means whereby 2.5 the hot fuel gases are automatically generated and heated as required.

Other objects will appear hereinafter, and I obtain these objects by the construction shown in the accompanying drawing in Fig. 1 is a view in elevation, and partly in section, of a construction which illustrates my invention.

Fig. 2 is a view in elevation of a portion of the recirculation and atomization elements showing means for positively accelerating the recirculated gas. a

Fig. 3 is a cross section taken on the line 3 3 of Fig. 1, and l v 40 Fig. 4 is a longitudinal section showing a modified form of burner or nozzle.

Like numerals refer to the same parts throughout the severalviews. I

The prime purpose of my invention include5 ed the provision of a simple and eficient oil burner for heating purposes, wherein the oil or other fuel is mechanically atomized within a non-oxidizing space, and the atomized fuel is immediately vaporized through the agency of a portion of its own heated gas.

Vaporization is edected at a comparatively high temperature, so as to produce a hot fuel gas which will spontaneously and immediately burst into flame when brought into contact with air, as for example, when fed to a furnace or is allowed to be jetted from the generator. To this end, I provide a pressure vapor chamber or column apparatus 10, having preferably a funnel shaped end 11, through which is fed the fuel and the heated 50 vaporizing gas by any suitable means `as a fuel supplying pipe 12 and a gas supplying pipe or nozzle 13. Oil or other hydrocarbon fuel is forced by a pump 14 through the conduit 12, and atomized at 15 into the enclosed o5 pressure vapor chamber or column apparatus 10. f

Since the heated gas is fed and mingled with the atoinized fuel, complete vaporization is eected and the gas thus generated is raised to a comparatively high temperature within the chamber 10, and the connecting conduit 16. 1When gas or heavy oils are used this temperature is approximately 500 to 800 F., depending upon the fuel used, and 75 conditions under which the system is operated. Thus is fuel gas generated in a continuous manner and raised to its effective combustion temperature by the recirculation of a portion of its own gas in the manner so above stated and for use in the manner which will now be more fully described.

Gas having thus been generated and raised to its combustion temperature under nonoxidizing conditions, is now ready for use as fuel and for other purposes. When used as a fuel, I provide means for effecting combustion. For this purpose I provide the gas supplying conduit 16, having a branch takeoff 17, which is provided with a pressure re- 9o lief valve 18, and a feed regulatin valve 19 to control the supply of gas at the urner 20. Shut-off valves 2O and 21 admit of proper regulation for the re-circulating of a portion of the gas through that portion of the conduit 16 which passes through the furnace 22 and bach to the gas supply nozzle or pipe 13. It is understood that when the apparat-us is in operation the heat of the recirculated gas supplies the necessary thermal units to ef- 10G- feet the vaporization and temperature increase of the generated gas.

To effect complete and controllable combustion, I provide an adjustable burner 20, whereby the jet or flame is controlled and which provides means for permitting the flame to automatically build up or adjust itself in accordance with the gas supplied and the position of the burner parts. In a Ypreferred form of burner construction, I surround the jet end of the gas feed take-off 17 with concentric cylindrical members 31, 32, and 33. rI`hese members are suitably spaced and held by a spider 29 or the like. The concentric air feed spaces between the nozzle pipe and the consecutive cylindrical members vary and become narrower between successive members outwardly to thus compensate for the volume of air supplied to the burner. Handles 34 provide means for adjusting the movable members longitudinally to thereby vary the distance of the nozzle end and the ends of the c-ylindrical members.

In Fig. 4 I have shown a burner having` its inner movable member 3l conically shaped, so as to vary the air feed when this member is moved in or out. A spider 36 slidably holds this member. rIhe outer burner member 37 is secured to the furnace wall, and a spider 38 holds the intermediate concentric member 39 in fixed relation.

The apparatus may be started by igniting the torch 40 beneath the auxiliary vaporizer 4l to generate gas from hydrocarbon oil supplied through a funnel 42. The vapor thus generated is admitted to the vapor chamber 10 by means of pipe 43. An auxiliary heater 44- surrounds the recirculating pipe for boosting the temperature by means of gas flames 45 playing on the heater. The hot gas valve 46. is opened to permit circulation, and if desired, circulation is increased by a blower 47 in the hot gas return end of the circulating conduit 16` Oil or other fuel is now supplied Y through the fuel feed pipe 4S by suitable means, as a pump 49. The fuel supply, and hence the amount of heat generated by the burner, is controlled by valves 50 which are located in the fuel feed pipe 48. The temperature is further controlled by the gas feed regulating valve 19 and the burner 20. These Valves and the burner may be regulated and set by hand by turning` valve 50 for example and by'moving the burner members by handle 34, or they may be thermostatically regulated in the known manner. IVith proper thermostatic control and oil as the source of fuel, the apparatus is self regulating and automatic.

IVhile I have described a specific embodiment of my invention, I do not thereby desire to be understood as having thus limited myself, as various equivalents falling wholly within the spirit and scope of my invention,

will suggest themselves to those versed in the art.

What I claim, therefore as new and useful, and desire to secure by Letters Patent is l. In a gas generator heater, the combination of a closed circulatory system, a pressure vapor chamber within said system, means for forming a heated fuel gas within said system, and means for causing combustion of a portion of said gas by exposure to the air while the remaining portion of said gas within the system is caused to be heated and recirculated, and means for supplying additional fuel to said recirculating'heated gas 2. In a gas generator heater, the combination of a closed circulatory system, a pressure vapor chamber within said system, means for forming a heated fuel gas within said system, and means for causing combustion of a portion of said gas by exposure to the air while the remaining portion of said gas within the system is caused to be heated and recirculated, means for supplying additional fuel to said recirculating heated gas, and means for regulating said fuel supply and said combustion.

3. A gas generating oil heater comprising a closed circulatory system having therein a vapor pressure chamber united in said closed system and constituting means for re-circulating hot fuel gas through the system, means for generating a fuel gas in said system, said means including a spray nozzle and force pump to atomize oil within said pressure chamber, and means for vaporizing said atomized oil under non-oxidizing conditions within the pressure chamber by a portion of its gas.

4. A gas generating oil heater comprising a closed circulatory system having therein a Vapor pressure chamber united in said closed system and constituting means for recirculating hot fuel gas through the system, means for generating a fuel gas in said system, said means including a spray nozzle and force pump to atomize oil within saidA pressure chamber, and means for vaporizing said atomized oil under non-oxidizing conditions within the pressure chamber by a portion of its gas, means to heat said port-ion of gas, and a burner attached to said system for utilizing the major portion of said fuel gas.

5. A gas generating oil heater comprising a closed circulatory system having therein a vapor pressure chamber united in said closed system and constituting means for re-circulating hot fuel gas through the system, means for generating a fuel gas in said pressure chamber, means for causing an increase of pressure in said system, a burner aiixed to said system, said burner comprising means for using and burning a part of the fuel gas as it is continuously taken from said system, and means for controlling said combustion.

6. In a gas generator heater, the combination of a system and means therein for atomizing a hydro-carbon fuel, means for vaporizing said atomized fuel by the re-cireulation of a portion of its own gas Within said system, means for boosting the temperature of said portion of the vaporized fuel, means for taking from said system a portion of said vaporized fuel, and controllable means for mixing air With said portion of fuel taken from the said system.

In testimony whereof I have hereunto set my hand on this 19th day of August A. D.,

HENRY BAETZ. 

